A density-functional theory of ferromagnetism in heterostructures of compound semiconductors doped with magnetic impurities is presented. The variable functions in the density-functional theory are the charge and spin densities of the itinerant carriers and the charge and localized spins of the impurities. The theory is applied to study the Curie temperature of planar heterostructures of III-V ...

Efficient, low-cost, and stable electrocatalysts for water splitting are highly desirable. Herein, three-dimensional (3D) Ni2P nanosheet arrays were fabricated simultaneously modulated by heterostructure engineering Mn doping (Mn-doped Ni2O3/Ni2P Mn-doped NixSy/Ni2P) via a facile hydrothermal reaction subsequent phosphorization sulfurization. Due to the doping, synergistic effect in heterostruc...